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I'm reaching out to gather some detailed information about your RO membrane product line. As a new customer, I'm particularly interested in understanding the pricing structure for different quantities and the quality specifications you offer. Could you also provide any insights into the performance metrics and durability of these membranes? Additionally, if you have any available options or recommendations for bulk purchasing, it would be great to know. I'm keen to establish a fruitful relationship with your company and ensure that I make informed purchasing decisions. Looking forward to your prompt response with the details!